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发明名称
TUBING AND CASING UNIT FOR WELLHEAD BLOWOUTS
摘要
申请公布号
GB9121443(D0)
申请公布日期
1991.11.20
申请号
GB19910021443
申请日期
1991.10.01
申请人
WORLDRILL WELL CONTROL DIVISION OF UNION CREDIT INTERNATIONAL CORPORATION
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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